Don't Move Out, Move Up! Marylebone Loft Specialists

Your local Marylebone loft authority. We have completed hundreds of successful conversions in the area. Ask to see our portfolio.

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10-Year Warranty On all Structure
FMB Member Vetted Master Builders
Fully Insured £5m Public Liability
TrustMark Gov. Endorsed Quality

Why Choose Loft Conversion in Marylebone?

Transform your Marylebone property without moving. Add space and value with our expert loft conversion service.

Increase Marylebone Property Value

Add up to 20% to your Marylebone property value with a professional loft conversion.

Stay in Marylebone

No need to leave Marylebone. Get the space you need in your current home.

Quick Marylebone Installation

Most Marylebone loft conversions completed in 4-6 weeks with minimal disruption.

Extra Marylebone Living Space

Create bedrooms, offices, or playrooms perfect for Marylebone family living.

Expert Marylebone Loft Conversion Specialists

Transform your Marylebone property's unused loft space into beautiful, functional living areas with our professional loft conversion services. Whether you need an extra bedroom, home office, or playroom in Marylebone, we create bespoke solutions tailored to your lifestyle.

Our experienced Marylebone team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Marylebone conversion maximizes space, natural light, and property value.

  • Dormer loft conversions in Marylebone
  • Hip-to-gable conversions for Marylebone homes
  • Mansard loft conversions in Marylebone
  • Velux window installations across Marylebone
  • En-suite bathrooms for Marylebone lofts
  • Marylebone planning permission support
Marylebone loft conversion specialist at work

Marylebone Loft Specialists

CITB Certified • Marylebone Planning • Building Regulations

Types of Loft Conversions in Marylebone

Choose the perfect conversion type for your Marylebone property to maximize space and value

Velux Loft Conversion in Marylebone

Velux Loft Conversion Marylebone

The most cost-effective option for Marylebone properties using roof windows for natural light. Perfect for Marylebone homes with adequate headroom.

  • Most affordable in Marylebone
  • Minimal structural work
  • No Marylebone planning permission usually
  • Natural light throughout
Dormer Loft Conversion in Marylebone

Dormer Loft Conversion Marylebone

Add valuable floor space and headroom to your Marylebone property with single or multiple dormers. Popular choice in Marylebone for space optimization.

  • Maximum Marylebone space gain
  • Improved headroom
  • Additional windows
  • Cost-effective for Marylebone
Hip-to-Gable Conversion in Marylebone

Hip-to-Gable Conversion Marylebone

Transform sloping hip roofs into vertical gable walls in your Marylebone home, significantly increasing usable floor space. Ideal for Marylebone semi-detached properties.

  • Substantial Marylebone space increase
  • Improved room proportions
  • Better natural light
  • Enhanced Marylebone property value
Mansard Loft Conversion in Marylebone

Mansard Loft Conversion Marylebone

The premium option for Marylebone properties creating maximum space with near-vertical walls. Perfect for period properties in Marylebone.

  • Maximum Marylebone floor space
  • Multiple rooms possible
  • Period Marylebone property suitable
  • Highest value addition

Marylebone Loft Conversion Requirements

Your Marylebone property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Marylebone specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Marylebone property and budget. Most Marylebone conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.

Marylebone Planning & Regulations Guide

Permitted Development in Marylebone

Most terraced and semi-detached homes in Marylebone have a 40-50 cubic meter allowance for roof extensions without full planning permission. We handle all Lawful Development Certificate applications for you.

Marylebone Building Control

Every conversion we build is inspected by approved inspectors to ensure compliance with Part B (Fire Safety) and Part L (Insulation) of the building regulations specific to Marylebone housing stock.

Party Wall Agreements

Living in a terraced or semi-detached house in Marylebone? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.

Complete Marylebone Loft Conversion Services

Free Marylebone Loft Assessment

Comprehensive evaluation of your Marylebone loft space, structural assessment, and advice on the best conversion type for your property.

Marylebone Design & Planning

Architectural drawings, 3D visualizations, and planning permission applications for Marylebone properties. We handle all regulatory approvals.

Marylebone Structural Work

Steel beam installation, floor strengthening, and staircase construction by qualified Marylebone engineers.

Marylebone Windows & Dormers

Velux roof windows, dormer construction, and window installations to maximize natural light in Marylebone homes.

Marylebone En-Suite Bathrooms

Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Marylebone loft.

Marylebone Interior Finishing

Plastering, decorating, flooring, and interior design services to create beautiful Marylebone living spaces.

Our Marylebone Loft Conversion Process

Marylebone Planning & Design Phase

  • Free Marylebone Survey: Comprehensive assessment of your loft space
  • Design Development: Architectural drawings for Marylebone properties
  • Marylebone Planning Applications: Local authority submissions where required
  • Structural Calculations: Engineering assessments for Marylebone building control
  • Fixed Price Quote: Detailed Marylebone pricing with full breakdown

Marylebone Construction Phase

  • Project Management: Dedicated Marylebone project manager
  • Structural Work: Steel beams and strengthening in Marylebone
  • Roofing & Windows: Dormer construction for Marylebone homes
  • Services Installation: Marylebone certified electrical and plumbing
  • Interior Finishing: Quality finishing to Marylebone standards

Free Marylebone Survey

Professional space assessment

Marylebone Design & Planning

Architectural drawings and approvals

Expert Marylebone Construction

Professional loft specialists

Loft Conversions Across Marylebone

Marylebone City Centre

Professional loft conversions throughout Marylebone city centre, including period properties, modern homes, and conservation areas requiring specialist Marylebone planning expertise.

Marylebone Suburbs

Expert loft conversion services across all Marylebone suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Marylebone.

Marylebone Period Properties

Specialist conversions for Marylebone's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.

Marylebone Conservation Areas

Expert handling of Marylebone conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.

Marylebone Loft Conversion Statistics

500+

Marylebone Loft Conversions Completed

4.9/5

Average Marylebone Customer Rating

15+

Years Serving Marylebone

100%

Marylebone Building Control Approved

Why Choose Building Group for Marylebone Loft Conversions?

Local Marylebone Expertise

With over 15 years of experience in Marylebone, we understand local planning requirements, building regulations, and architectural styles. Our Marylebone team delivers exceptional loft conversions that enhance your property value.

Marylebone Quality Guarantee

  • Marylebone Planning Experts: We handle all local authority requirements
  • Local Marylebone Team: All work by trusted local professionals
  • 10-Year Guarantee: Full warranty on all Marylebone conversions
  • Fixed Marylebone Pricing: No hidden costs or surprises
  • Insurance: Fully insured for Marylebone projects

Marylebone Service Areas

  • Marylebone City Centre
  • North Marylebone
  • South Marylebone
  • East Marylebone
  • West Marylebone

Recent Marylebone Loft Conversion Projects

Hip to Gable Loft Conversion in Marylebone

Victorian Terrace - Marylebone

Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Marylebone terrace. Added 30sqm of living space.

Project Value: £48,000

Dormer Loft Conversion in Marylebone

Modern Semi - Marylebone

Dormer loft conversion in modern Marylebone semi-detached. Created two bedrooms and bathroom for growing family.

Project Value: £42,000

Mansard Loft Conversion in Marylebone

Period Property - Marylebone

Mansard conversion in Marylebone conservation area. Luxury master suite with dressing room and ensuite.

Project Value: £65,000

What Marylebone Homeowners Say

★★★★★

"We hired them for a shell conversion in Marylebone and were so impressed we asked them to complete the fit-out too. Five stars."

- Charles Scott, Marylebone

★★★★★

"Professional service from start to finish. Our hip-to-gable conversion has added so much space to our Marylebone home. Quality workmanship."

- Andrew Martin, Marylebone

★★★★★

"Top quality dormer conversion. Added significant value to our Marylebone property. Friendly team and very clean working environment."

- William Turner, Marylebone

Marylebone Loft Conversion Pricing Guide

Marylebone Loft Conversion Costs

Loft conversion costs in Marylebone vary based on type, size, and specifications. Typical Marylebone prices: Velux conversions £20,000-£30,000, Dormer conversions £35,000-£45,000, Hip-to-gable £40,000-£55,000, Mansard conversions £45,000-£65,000. All Marylebone quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Marylebone survey and detailed quote.

Estimated Investment for Marylebone Lofts

A transparent guide to typical conversion costs in the Marylebone area (2025 Estimates)

Conversion Type Suitability Timeframe Price Range
Velux (Roof Light) Existing headroom > 2.3m 4-6 Weeks £20k - £30k
Dormer (Rear) Semis & Terraces 6-8 Weeks £35k - £50k
Hip-to-Gable End-terrace & Semi-detached 8-10 Weeks £45k - £60k
Mansard Period Properties / London Styles 10-12 Weeks £50k - £75k+

*Prices are indicative for Marylebone properties and subject to survey.

Meet Your Marylebone Project Lead

Senior Loft Consultant for Marylebone

Mathew Oneill

Senior Structural Specialist

"I oversee all loft conversions in the Marylebone area. My job is to ensure your project meets local building regulations while maximizing every inch of space. I'm happy to visit your property for a preliminary structural assessment."

  • 20+ Years Exp.
  • CIOB Member

Let's Raise the Roof in Marylebone!

Speak to our friendly team about your requirements and get a fixed-price quote for your Marylebone conversion.

Book Free Marylebone Loft Survey